linux-imx

LF-903 firmware: imx: Align imx SC msg structs to 4

The imx SC api strongly assumes that messages are composed out of
4-bytes words but some of our message structs have sizeof "6" and "7".

This produces many oopses with CONFIG_KASAN=y:

	BUG: KASAN: stack-out-of-bounds in imx_mu_send_data+0x108/0x1f0

It shouldn't cause an issues in normal use because these structs are
always allocated on the stack.

Also upstream: https://patchwork.kernel.org/patch/11376909/

Reported-by: Iuliana Prodan <iuliana.prodan@nxp.com>
Signed-off-by: Leonard Crestez <leonard.crestez@nxp.com>
Reviewed-by: Jason Liu <jason.hui.liu@nxp.com>
Reviewed-by: Aisheng Dong <aisheng.dong@nxp.com>
Signed-off-by: Dong Aisheng <aisheng.dong@nxp.com>